Overview

overview

10

Static

static

10

491544e52e...99.exe

windows7_x64

10

491544e52e...99.exe

windows10_x64

10

Sharing

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General

  • Target

    491544e52e7cc8c4260647abcb38138c21e34406d4e553936c5e1be8931c0099

  • Size

    821KB

  • Sample

    210516-864qesg2zs

  • MD5

    d9b36a4b92a93b667270722827c7d303

  • SHA1

    cfaec9d1e7557c483a3415fb4496735c6da181dc

  • SHA256

    491544e52e7cc8c4260647abcb38138c21e34406d4e553936c5e1be8931c0099

  • SHA512

    11299d1e2388e7132e47dfb2b72cc1a98a92ecb29500082c763f237f2f4f023fb650af7901e6402889fd9a014e55cd4d30464740839f53cdd05f85a65a1ff665

Score
10/10
darkcometevasionpersistencerattrojan

Malware Config

Targets

    • Target

      491544e52e7cc8c4260647abcb38138c21e34406d4e553936c5e1be8931c0099

    • Size

      821KB

    • MD5

      d9b36a4b92a93b667270722827c7d303

    • SHA1

      cfaec9d1e7557c483a3415fb4496735c6da181dc

    • SHA256

      491544e52e7cc8c4260647abcb38138c21e34406d4e553936c5e1be8931c0099

    • SHA512

      11299d1e2388e7132e47dfb2b72cc1a98a92ecb29500082c763f237f2f4f023fb650af7901e6402889fd9a014e55cd4d30464740839f53cdd05f85a65a1ff665

    Score
    10/10
    darkcometevasionpersistencerattrojan

    • Darkcomet

      DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Modifies firewall policy service

      evasion

    • Modifies security service

      evasion

    • Windows security bypass

      evasiontrojan

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

      evasion

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Loads dropped DLL

    • Windows security modification

      evasiontrojan

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1
T1004

Modify Existing Service

2
T1031

Hidden Files and Directories

2
T1158

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

6
T1112

Disabling Security Tools

2
T1089

Hidden Files and Directories

2
T1158

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks